But five major groups in the food industry say they are concerned that the new maize could enter the food supply.

VOA: special.2011.03.08

Western nations are concerned that Iran could use the missile technology to launch a nuclear weapon, which Iran is suspected of building.

VOA: special.2009.02.07

He was concerned that he would lose the support of the scientific community if he revealed it.

VOA: special.2009.02.25

Doctor Seuss was very concerned that some children were not learning to read.

VOA: special.2010.05.02

But some people are concerned that breeding has reduced genetic differences among cattle.

VOA: special.2009.05.05

I grew concerned that I might take a turn for the worse.

VOA: special.2011.01.30

And,House Republican Leader John Boehner said Americans are concerned that Mr.Obama's proposal will involve excessive government involvement in people's lives.

VOA: standard.2009.07.23

A poll by the Pew Internet and American Life Project says are concerned that law enforcement agencies could access their files.

VOA: standard.2010.06.22

But the army's limited capacity for counterinsurgency operations and a weak central government have many concerned that the situation could worsen.

VOA: standard.2009.05.05

UNICEF says it is particularly concerned that some 700,000 children will miss out on the coming school year.

VOA: standard.2009.07.03

And so I think they are concerned that on national security the Republicans could get the upper hand and hurt Obama politically."

VOA: standard.2010.01.06

However,I am extremely concerned that moving this bill out of committee will undermine President Obama's diplomatic efforts."

VOA: standard.2009.10.28

He is concerned that President Obama might join the European Union and many Latin American nations in suspending aid and trade with Honduras.

VOA: standard.2009.07.03

"We are concerned that there may be some spillover effect, as there was in the past,".

VOA: standard.2009.07.04